My problem is fixed now. My website host editing the config file as described in this http://www.wpbeginner.com/wp-tutorials/how-to-fix-white-text-and-missing-buttons-in-wordpress-visual-editor/ and reloaded WP and all was fine with my access again.
Thanks @tara, but speed is just one of the issues. The other is that I can’t edit or add anything to the site until the edit page shows the edit tools and the type that I’m working with. Can you suggest how to address this latter issue? Thanks.
